I have the same problem, since installing lansweeper (about 1-2 weeks) was not scanned 33 computers:
Errorlog file:
2009-04-27 09:08:07: Database connection successful, starting up service
2009-04-27 09:28:07: Wystąpił błąd poziomu transportu podczas wysyłania żądania do serwera. (provider: Dostawca TCP, error: 0 - Istniejące połączenie zostało gwałtownie zamknięte przez zdalnego hosta.)
w System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
w System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
w System.Data.SqlClient.TdsParserStateObject.WriteSni()
w System.Data.SqlClient.TdsParserStateObject.ExecuteFlush()
w System.Data.SqlClient.TdsParser.TdsExecuteSQLBatch(String text, Int32 timeout, SqlNotificationRequest notificationRequest, TdsParserStateObject stateObj)
w System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async)
w System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result)
w System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
w System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
w System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
w System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
w System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
w System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
w System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable)
w LansweeperService.MdlServiceStatus.WriteServiceStatus()
2009-04-28 11:17:34: Database connection successful, starting up service
2009-05-04 16:45:23: TEST Serwer RPC jest niedostępny. (Wyjątek od HRESULT: 0x800706BA)
w System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
w System.Management.ManagementObject.Initialize(Boolean getObject)
w System.Management.ManagementBaseObject.get_wbemObject()
w System.Management.ManagementObject.get_ClassPath()
w System.Management.ManagementObject.GetMethodParameters(String methodName, ManagementBaseObject& inParameters, IWbemClassObjectFreeThreaded& inParametersClass, IWbemClassObjectFreeThreaded& outParametersClass)
w System.Management.ManagementObject.GetMethodParameters(String methodName)
w LansweeperService.MdlRegistry.LSIEActiveX(clsComputer Mycomputer, String section, SqlConnection& sqlcon)
Thanks in advance for any suggestions